Nail gun and backpack type charging system thereof

Abstract

The utility model discloses a nail gun and a backpack type charging system thereof, the nail gun is configured to give nailing kinetic energy through discharging of a capacitor to a coil, and the backpack type charging system comprises an energy storage backpack capable of being hung on a human body, a control module, a rectifier module and a transformer; a power supply formed by connecting a plurality of energy storage batteries in series and / or in parallel is arranged in the energy storage knapsack, and the energy storage knapsack outputs 72-100V direct current to the primary side of the transformer; electric energy on the primary side of the transformer is controlled by a switch of the control module to form chopped waves, so that the transformer raises the output voltage of the energy storage backpack to target voltage, and the secondary side of the transformer is rectified by the rectifier module and then is output to the capacitor for charging. According to the portable nail gun, the portability of the nail gun can be guaranteed, meanwhile, the nail gun is matched with a transformer with higher power and a capacitor with higher charging and discharging voltage, and the driving force of the nail gun is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of nail guns, in particular to a nail gun and a backpack type charging system thereof. Background Art

[0002] Electromagnetic nail guns are a common nailing device that can provide a relatively large driving force and are suitable for nailing large nails. Patent 201520580802.4 discloses a handheld electromagnetic nail gun that first converts the DC power of the battery pack into high-frequency AC power, and then converts it into high-voltage DC power through a transformer to charge the capacitor. After the capacitor is fully charged, the electromagnetic effect is triggered by discharging the coil to drive the nail. However, in order to design it to be handheld, the internal space of the nail gun cannot accommodate a larger transformer, so it is not suitable for large-capacity capacitors and the driving force it can provide is limited. In response to this, Patent 202310950464.8 discloses an electromagnetic pulse nail gun control circuit that directly transforms the 220V voltage and then charges the capacitor. Since the voltage boost is smaller and the transformer is smaller, the size of the nail gun can be reduced, but it must be connected to the mains through wires, which is not convenient enough. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a nail gun and a backpack-type charging system thereof, which can adapt to a larger power transformer and a capacitor with a higher charging and discharging voltage while ensuring the portability of the nail gun, thereby improving the driving force of the nail gun.

[0004] In order to solve the above technical problems, the utility model discloses a backpack charging system for a nail gun in a first aspect, wherein the nail gun is configured to impart nailing kinetic energy by discharging a capacitor to a coil, and comprises an energy storage backpack that can be hung on a human body, a control module, a rectifier module and a transformer;

[0005] The energy storage backpack has a built-in power supply formed by multiple energy storage batteries connected in series and / or in parallel, and the energy storage backpack outputs 72-100V direct current to the primary side of the transformer;

[0006] The electric energy on the primary side of the transformer is chopped by the switch control of the control module, so that the transformer raises the output voltage of the energy storage backpack to the target voltage, and the secondary side of the transformer is rectified by the rectifier module and output to charge the capacitor.

[0007] As an optional implementation, the energy storage battery is a high-rate discharge battery.

[0008] As another optional implementation, the target voltage is 450-550V.

[0009] As another optional implementation, the capacitor is formed by connecting a plurality of capacitors in parallel.

[0010] As another optional implementation, the capacity of the capacitor is 500-3000 μF, and the rated voltage is 450-600V.

[0011] As another optional implementation, the control module includes a PWM chip and a control chip.

[0012] As another optional implementation, it also includes a control module power supply circuit, which is used to transform the output voltage of the energy storage backpack into 5V and 15V, wherein a 15V power supply is provided to the PWM chip, and a 5V power supply is provided to the control chip.

[0013] The second aspect of the utility model discloses a nail gun, comprising the backpack-type charging system as described in the first aspect of the utility model.

[0014] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0015] With regard to the existing method of setting the power supply in the nail gun, there is a limitation on the size of the power supply, which will further limit the size of the transformer B and affect the volume of the nail gun. In the embodiment of the utility model, the external energy storage backpack 2 will not occupy the internal space of the nail gun, so that the volume of the transformer B can be correspondingly expanded without considering the size of the power supply. Therefore, while ensuring the portability of the nail gun, a larger power transformer B and a capacitor with a higher charging and discharging voltage can be adapted to improve the driving force of the nail gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of a nail gun with a backpack-type charging system in an application scenario disclosed in an embodiment of the utility model;

[0018] Figure 2 It is a structural schematic diagram of a backpack charging system for a nail gun disclosed in an embodiment of the utility model;

[0019] Figure 3 It is a structural schematic diagram of a power supply circuit of a backpack charging system of a nail gun disclosed in an embodiment of the utility model;

[0020] Figure 4 It is a structural schematic diagram of another power supply circuit of a backpack charging system of a nail gun disclosed in an embodiment of the utility model;

[0021] Figure 5 It is a structural schematic diagram of a control chip of a backpack charging system of a nail gun disclosed in an embodiment of the utility model;

[0022] Figure 6 It is a structural schematic diagram of a PWM chip of a backpack charging system of a nail gun disclosed in an embodiment of the utility model. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1

[0025] See also Figure 1-6 , the utility model embodiment discloses a backpack charging system for a nail gun 1, the nail gun is configured to impart nailing kinetic energy by discharging a capacitor to a coil, the backpack charging system comprises an energy storage backpack 2 that can be hung on a human body, a control module, a rectifier module A and a transformer B;

[0026] The energy storage backpack 2 has a built-in power supply formed by multiple energy storage batteries connected in series and / or in parallel, and the energy storage backpack 2 outputs 72-100V DC power to the primary side of the transformer B;

[0027] The electric energy on the primary side of the transformer B is chopped by the switch control of the control module, so that the transformer B raises the output voltage of the energy storage backpack 2 to the target voltage. The secondary side of the transformer B is rectified by the rectifier module A and output to charge the capacitor.

[0028] In the embodiment of the utility model, the nail gun uses a transformer to perform voltage boost processing. Among them, the output voltage of the energy storage backpack 2 is set to 72-100V to avoid exceeding the range and causing the backpack to be too heavy, and below the range and causing the transformer to be too large, affecting portability.

[0029] With regard to the existing method of setting the power supply in the nail gun, there is a limitation on the size of the power supply, which will further limit the size of the transformer B and affect the volume of the nail gun. In the embodiment of the utility model, the external energy storage backpack 2 will not occupy the internal space of the nail gun, so that the volume of the transformer B can be correspondingly expanded without considering the size of the power supply. Therefore, while ensuring the portability of the nail gun, a larger power transformer B and a capacitor with a higher charging and discharging voltage can be adapted to improve the driving force of the nail gun.

[0030] For an example, see Figure 2 , Figure 2 The voltage of capacitor C4 in the circuit will drop to about 230V after being discharged at the maximum discharge power. A high-rate discharge battery or a high-rate discharge battery pack is used to output 24V low-voltage DC to the primary side of transformer B. Transformer B boosts 24V to 450-550V.

[0031] When the charging voltage of the capacitor remains unchanged (i.e., the output voltage of transformer B remains unchanged), when the voltage of the energy storage backpack 2 is higher, the volume required for transformer B will be smaller due to the reduced boosting capability requirement; when the voltage of the energy storage backpack 2 remains unchanged, when the charging voltage of the selected capacitor is higher, the volume required for transformer B will be larger due to the increased boosting capability requirement; in this way, the output voltage of the energy storage backpack 2 and the charging voltage of the capacitor can be flexibly set according to the design requirements of the nail gun.

[0032] In an optional embodiment, the energy storage battery is a high-rate discharge battery.

[0033] In yet another optional embodiment, the target voltage is 450-550V.

[0034] In yet another optional embodiment, the capacitor is formed by connecting a plurality of capacitors in parallel.

[0035] In yet another optional embodiment, the capacity of the capacitor is 500-3000 μF, and the rated voltage is 450-600V.

[0036] In another optional embodiment, the control module includes a PWM chip and a control chip, see Figure 5 , Figure 6 . Figure 3 and Figure 4 The power supply circuit for the PWM chip and the control chip transforms the 24V input power supply into 5V and 15V, of which 15V is used to supply power to the PWM chip and 5V is used to supply power to the control chip.

[0037] Embodiment 2

[0038] The embodiment of the utility model discloses a nail gun, including a backpack charging system as described in the first embodiment. The contents disclosed in the embodiment of the utility model only disclose the preferred embodiments of the utility model, which are only used to illustrate the technical solution of the utility model, but not to limit it; although the utility model is described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that the technical solutions recorded in the aforementioned embodiments can still be modified, or some of the technical features therein can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A backpack charging system for a nail gun, wherein the nail gun is configured to impart nailing kinetic energy by discharging a capacitor to a coil, characterized in that: It includes an energy storage backpack that can be hung on the human body, a control module, a rectifier module and a transformer; The energy storage backpack has a built-in power supply formed by multiple energy storage batteries connected in series and / or in parallel, and the energy storage backpack outputs 72-100V direct current to the primary side of the transformer; The electric energy on the primary side of the transformer is chopped by the switch control of the control module, so that the transformer raises the output voltage of the energy storage backpack to the target voltage. The secondary side of the transformer is rectified by the rectifier module and output to charge the capacitor.

2. The backpack charging system according to claim 1, characterized in that: The energy storage battery is a high-rate discharge battery.

3. The backpack charging system according to claim 1, characterized in that: The target voltage is 450-550V.

4. The backpack charging system according to claim 1, characterized in that: The capacitor is formed by connecting a plurality of capacitors in parallel.

5. The backpack charging system according to claim 1, characterized in that: The capacity of the capacitor is 500-3000 μF, and the rated voltage is 450-600V.

6. The backpack charging system according to claim 1, characterized in that: The control module includes a PWM chip and a control chip.

7. The backpack charging system according to claim 6, characterized in that: It also includes a control module power supply circuit, which is used to transform the output voltage of the energy storage backpack into 5V and 15V, wherein a 15V power supply is provided to the PWM chip, and a 5V power supply is provided to the control chip.

8. A nail gun, characterized in that: It comprises a backpack charging system as described in any one of claims 1 to 7.

Images